REARRANGE BASED ON IDENTITY AND APPLICATION IN EMAIL IN THE CLOUD

Abstract

Within a CIBPRE system, a trusted key generation center initializes the CIBPRE machine parameters and generates private keys for users. To securely share files to multiple recipients, a sender can secure the files by using the recipients' identities and file discussion conditions. If the sender later wishes to talk about some files related to a similar condition together with other receivers, the sender can delegate a tagged re-encrypted encryption key using the condition for the proxy, as well as the parameters to create the encryption secret of re-archiving. It is beyond the original recipients of these files. Conditional PREs, based on identity and transmission PREs, are suggested for flexible applications. CIBPRE allows a sender to secure a note to multiple receivers by indicating the identities of those receivers, and can also delegate a re-encryption encryption response to a proxy to convert the first encrypted text into a substitute for a different group of recipients. Recipients by CPRE, IPRE and BPRE, this document proposes a flexible primitive known as conditional emission based on PRE identity and formalizes its semantic security. In addition, the re-encryption encryption key can be connected with a condition so that only the corresponding encryption texts can be encrypted again, allowing the initial sender to enforce access control of their remote encryption texts in a very detailed. Finally, we show a credit card application on our CIBPRE to protect the cloud email system that is beneficial to existing secure email systems according to very good privacy protocol or file-based encryption identity